Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4144878A | Occlusive impedance phlebograph and method therefor | ELECTRO-DIAGNOSTIC INSTRUMENTS A CORP OF | Expired / Lapsed | 1976-12-13 | 1979-03-20 | 1996-12-13 | 0.0 yrs | 21 | |
| US3996924A | Occlusive impedance phlebograph and method therefor | ELECTRO-DIAGNOSTIC INSTRUMENTS A CORP OF | Expired / Lapsed | 1974-06-19 | 1976-12-14 | 1994-06-19 | 0.0 yrs | 18 |